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A body initially at 80^@CcooIs to 64^@Ci...

A body initially at `80^@C`cooIs to `64^@C`in 5 minutes and to `52^@C`in 5 minutes. What will be the temperature after 15 minutes and what is the temperature of surroundings.

A

`16^@c, 43^@

B

`6^@3,c_^@c,6^@c

C

`43^@C16^@C

D

`3^@ C 6^@C

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